How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/17100.0*Chance in playoffs100.0*Average seed
arn 58 thi 86.5 In
+0.3
wel 61 she 80.5 +0.1
mcn 118 war 81 +0.1
pin 126.5 tot 101 -0.0
sco 129.5 con 127.5 +0.1
If winner is:HomeAway
Week of 11/24100.0*Chance in playoffs100.0*Average seed
dav vs thi-0.2+0.2
sco vs war+0.1-0.1
arn vs con+0.1-0.1
pin vs tai-0.0+0.1

What If

Chances based on how well the thi finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs123456789101112Count
02-1In96417,826,114
1-2In6133516,229,168
3-0In1006,540,765
0-3In1034411514,930,417
Total:In751762045,526,464
Points
Chance Will Make Playoffs